高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (12): 1227.

• 论文 • 上一篇    下一篇

铜(Ⅱ)-2-QADNm络合物电分析性能研究

张正奇, 俞汝勤   

  1. 湖南大学化学化工系
  • 收稿日期:1987-05-14 出版日期:1988-12-24 发布日期:1988-12-24
  • 通讯作者: 张正奇

Studies on Electroanalytical Characteristics of Complexes of Copper (Ⅱ) with 2-QADNm

Zhang Zhengqi, Yu Ruqin   

  1. Department of Chemistry and Chemical Engineering, Hunan University, Changsha
  • Received:1987-05-14 Online:1988-12-24 Published:1988-12-24

PDF (PC)

被引次数

9

摘要： 本文研究了铜(Ⅱ)与2-QADNm形成的络合物的极谱行为。用改进的单纯形法优化了底液条件,研究了Cu(Ⅱ)-2-QADNm体系的电分析特性;提出了用2-QADNm借络合物吸附波测定痕量铜的方法,测定低限为10-8mol/L。

关键词: 二羟萘偶氮化合物, 极谱分析, 铜的测定

Abstract: The polarographic and other electroanalytical behavior of complexes of copper(Ⅱ) with 4-(2-quinolylazo )-1,3-dihydroxynaphthalene (2-QADNm) has been studied by pulse polarography,A Cimpedance measurement and cyclic voltam-metry. Using polarographic wave of Cu(2-QADNm)2 complex at -0.79V,the trace copper down to 10-8mol/L can be determined. Asingle-sweep polarographic procedure for determination of copper using 2-QADNm as the reagent has been worked out.

Key words: Quinolylazodihydroxynaphthalene, Polarography, Copper assay

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